Winalysis 3.1
Monitor for changes to files, the registry, users, groups, services, security policies, and more. Archive Event Logs from multiple machines to a central database. Restore files and the registry from snapshots. Schedule jobs to monitor the network for critical changes, optionally generating alerts using SNMP traps, email, scripts, the event log... Create user-defined audit reports to help find security vulnerabilities and break-in attempts.

Advanced System Optimizer 2.10
ASOv2 has more than 200 tweaks for customizing Windows and supercharging your PC's performance. New features include a spyware detective, an icon manager and a comprehensive backup tool. You can back up the registry and restore it if it's damaged. The system cleaner removes junk and obsolete files from the system. The registry cleaner ensures that invalid information is removed, and the registry defragger helps you get maximum speed from your PC.

RegDoctor 2.06
Registry problems are the common cause of Windows crashes, error messages, and degraded performance! RegDoctor can safely and quickly clean and repair Windows registry problems with a few simple mouse clicks! RegDoctor uses an intelligent, high-performance detection engine to accurately identify missing and invalid references in your Windows registry.

Privacy and Registry Cleaner 2.0
Privacy and Registry Cleaner is a safe and easy-to-use privacy protection tool, that allows you to erase common Internet and computing tracks, including browser cache, cookies, visited websites, typed URLs, recent documents, index.dat files and the tracks of up to 100 popular applications. In addition, the program comes with a registry scanner to optimize your system registry by finding and removing errors and invalid entries.

UltraSentry v4.00
UltraSentry is a highly advanced military-grade disk and registry cleaner that has on-board, fully configurable security profiles that can run on demand, as scheduled or upon event. UltraSentry features an impressive range of commands that completely insulate your privacy, security, and computing needs both at work and at home. Schedule UltraSentry to watch over your computer, sensitive files, and protect your privacy while you are away.

System Maid 2.1
Registry errors slow down your computer and may result in your system becoming unusable. System Maid finds and corrects registry errors preventing malfunctions, erases junk files piling up on the hard drive, cleans on-line and system activity traces (e.g. passwords,credit card numbers,phone #'s,addresses) and creates registry backups. Keep your virtual world clean by letting the Maid do the work.

RealCare 3.16
NewCare is a new comprehensive, automatic, and self-updating PC care service that helps protect and maintain your PC. It works automatically and quietly in the background, constantly keeps your computer safe, error-free and running at top speed. NewCare does everything possible to remove junk, eliminate spyware, prevent dangerous programs, clean the system Registry,protect privacy. Easy, pretty, friendly, and reliable — that’s NewCare

System Mechanic 8
Make your old PC run like new. Keep your new PC running fast and problem-free. System errors and registry clutter will degrade your computer's performance, leading to crashes, longer boot times, and system errors. System Mechanic combines over 40 powerful PC tuneup tools to clean hard drive clutter, optimize your registry, defragment drives and memory, manage programs, boost your internet connection, and remove spyware.

Max Registry Cleaner 6.0.0.035
Computer's registry is the nerve center of a PC. It stores all the hardware, software and user settings, which keeps growing when you use Windows. Max Registry Cleaner scans the Windows registry to detect and delete invalid information from the registry. Max Registry Cleaner’s defragmentation feature arranges the cluttered registry linearly improving the system performance.

File Access Helper 8.1.2
File Access Helper is a security software to control files access.It can log and deny access to files and registry keys on PC.You can'trunning/copying/opening/modifying/deleting/finding any document if you select the appropriate button.The operation is that when a program is about to deal with a file or registry,File Access Helper is involved in.Furthermore,it allow you to build own rule to protect files.